Analysis

  • max time kernel
    150s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    25-03-2023 07:56

General

  • Target

    802adde2f73b801001415c095fcaffe3.exe

  • Size

    6.8MB

  • MD5

    802adde2f73b801001415c095fcaffe3

  • SHA1

    e787c97d506802f78922e71a809f042e0b8a4239

  • SHA256

    1cfa114e335202d50659ca4baec2671111f5a133a3f6817d7095c9670efde514

  • SHA512

    9f583a0f19aaad94172d08d1fb673e947a95b47d264aab4bbc9a8cb0bd3c1704298bbb618cbfb5a3e386b43c1bdb4b3a218c10f3eab2434db7c605e913c7ae4e

  • SSDEEP

    196608:rAgI4S0Ob45Tswtb/Yl/3+MFFT2qvW7ySS:caOb4BPx/wv+MFl2qvW7ySS

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Themida packer 18 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\802adde2f73b801001415c095fcaffe3.exe
    "C:\Users\Admin\AppData\Local\Temp\802adde2f73b801001415c095fcaffe3.exe"
    1⤵
    • Maps connected drives based on registry
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1488
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Roaming\886A1A2FF0C1A124\cumhal.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1600
      • C:\Users\Admin\AppData\Roaming\886A1A2FF0C1A124\cumhal.exe
        C:\Users\Admin\AppData\Roaming\886A1A2FF0C1A124\cumhal.exe
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1596
        • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
          "C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"
          4⤵
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Checks whether UAC is enabled
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious behavior: EnumeratesProcesses
          PID:1748
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\802adde2f73b801001415c095fcaffe3.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1304
      • C:\Windows\SysWOW64\timeout.exe
        timeout -t 5
        3⤵
        • Delays execution with timeout.exe
        PID:268

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\4090.tmp
    Filesize

    32B

    MD5

    502ef3f3ece4863580320144bb4def88

    SHA1

    c9b0633d81023b22bd1ac521797b853fc4ba1014

    SHA256

    5e4a980e509800ef5eba533fbfb5e7f38bd55d4b72008bb14be344a6c699a945

    SHA512

    28d53daf4f9c126cd639bb52254c70cca7198de167b64fd938168bfa22410ac6dcc5d34f740aad44d6a6eb76334a5dd422a65e7e4f6ab809df7ff4d110110228

  • C:\Users\Admin\AppData\Local\Temp\4130.tmp
    Filesize

    71KB

    MD5

    7634ebd082abbba35a8e6a300ec83c51

    SHA1

    953666e70fbed932e4bed446f1d1e432781972b7

    SHA256

    792aa1b2f647c981a8778a35717809ff0783bc4b6c022e6ed049c1029f6c584f

    SHA512

    6f95e7c7c4548ad206294e5fc13f9ed0bad9476e5775ac4e06bd324c6e0a14382fcf5f604e5899084ee2f3733405716d60842f3393d5fa174902dbb055d40f3e

  • C:\Users\Admin\AppData\Roaming\886A1A2FF0C1A124\cumhal.exe
    Filesize

    2.9MB

    MD5

    7f9a9c01f4cb2103b3cb04c7f4c94d4f

    SHA1

    3a6f6a2591fc20a2a8fb64b23be9ab917cc76258

    SHA256

    f07e5750e92c51b3eb2ebd1d740604f82463cf53e7166a3dede7495c6dfcd413

    SHA512

    1977204c6109f4f56fbd4cd3e0756fce9e6ffb3575b47e043658fb7ac40bc882270ab9347783e3191dac71bc3d3f86c53c2e1bcb479ee152842c4917e2a53c5c

  • C:\Users\Admin\AppData\Roaming\886A1A2FF0C1A124\cumhal.exe
    Filesize

    2.9MB

    MD5

    7f9a9c01f4cb2103b3cb04c7f4c94d4f

    SHA1

    3a6f6a2591fc20a2a8fb64b23be9ab917cc76258

    SHA256

    f07e5750e92c51b3eb2ebd1d740604f82463cf53e7166a3dede7495c6dfcd413

    SHA512

    1977204c6109f4f56fbd4cd3e0756fce9e6ffb3575b47e043658fb7ac40bc882270ab9347783e3191dac71bc3d3f86c53c2e1bcb479ee152842c4917e2a53c5c

  • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    Filesize

    2.9MB

    MD5

    7f9a9c01f4cb2103b3cb04c7f4c94d4f

    SHA1

    3a6f6a2591fc20a2a8fb64b23be9ab917cc76258

    SHA256

    f07e5750e92c51b3eb2ebd1d740604f82463cf53e7166a3dede7495c6dfcd413

    SHA512

    1977204c6109f4f56fbd4cd3e0756fce9e6ffb3575b47e043658fb7ac40bc882270ab9347783e3191dac71bc3d3f86c53c2e1bcb479ee152842c4917e2a53c5c

  • \Users\Admin\AppData\Roaming\886A1A2FF0C1A124\cumhal.exe
    Filesize

    2.9MB

    MD5

    7f9a9c01f4cb2103b3cb04c7f4c94d4f

    SHA1

    3a6f6a2591fc20a2a8fb64b23be9ab917cc76258

    SHA256

    f07e5750e92c51b3eb2ebd1d740604f82463cf53e7166a3dede7495c6dfcd413

    SHA512

    1977204c6109f4f56fbd4cd3e0756fce9e6ffb3575b47e043658fb7ac40bc882270ab9347783e3191dac71bc3d3f86c53c2e1bcb479ee152842c4917e2a53c5c

  • \Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    Filesize

    2.9MB

    MD5

    7f9a9c01f4cb2103b3cb04c7f4c94d4f

    SHA1

    3a6f6a2591fc20a2a8fb64b23be9ab917cc76258

    SHA256

    f07e5750e92c51b3eb2ebd1d740604f82463cf53e7166a3dede7495c6dfcd413

    SHA512

    1977204c6109f4f56fbd4cd3e0756fce9e6ffb3575b47e043658fb7ac40bc882270ab9347783e3191dac71bc3d3f86c53c2e1bcb479ee152842c4917e2a53c5c

  • memory/1488-64-0x00000000003E0000-0x00000000003E1000-memory.dmp
    Filesize

    4KB

  • memory/1488-57-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB

  • memory/1488-54-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/1488-65-0x00000000003E0000-0x00000000003E1000-memory.dmp
    Filesize

    4KB

  • memory/1488-67-0x00000000003F0000-0x00000000003F1000-memory.dmp
    Filesize

    4KB

  • memory/1488-68-0x00000000003F0000-0x00000000003F1000-memory.dmp
    Filesize

    4KB

  • memory/1488-70-0x0000000000F30000-0x0000000000F31000-memory.dmp
    Filesize

    4KB

  • memory/1488-71-0x0000000000F30000-0x0000000000F31000-memory.dmp
    Filesize

    4KB

  • memory/1488-73-0x0000000000F40000-0x0000000000F41000-memory.dmp
    Filesize

    4KB

  • memory/1488-74-0x0000000000F40000-0x0000000000F41000-memory.dmp
    Filesize

    4KB

  • memory/1488-75-0x0000000000400000-0x0000000000F26000-memory.dmp
    Filesize

    11.1MB

  • memory/1488-61-0x00000000002D0000-0x00000000002D1000-memory.dmp
    Filesize

    4KB

  • memory/1488-60-0x00000000002D0000-0x00000000002D1000-memory.dmp
    Filesize

    4KB

  • memory/1488-59-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB

  • memory/1488-58-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB

  • memory/1488-62-0x00000000002D0000-0x00000000002D1000-memory.dmp
    Filesize

    4KB

  • memory/1488-55-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/1488-56-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/1596-169-0x0000000000F50000-0x00000000016A6000-memory.dmp
    Filesize

    7.3MB

  • memory/1596-160-0x0000000000F50000-0x00000000016A6000-memory.dmp
    Filesize

    7.3MB

  • memory/1596-162-0x0000000000F50000-0x00000000016A6000-memory.dmp
    Filesize

    7.3MB

  • memory/1596-163-0x0000000000F50000-0x00000000016A6000-memory.dmp
    Filesize

    7.3MB

  • memory/1596-164-0x0000000000F50000-0x00000000016A6000-memory.dmp
    Filesize

    7.3MB

  • memory/1596-159-0x0000000000F50000-0x00000000016A6000-memory.dmp
    Filesize

    7.3MB

  • memory/1596-161-0x0000000000F50000-0x00000000016A6000-memory.dmp
    Filesize

    7.3MB

  • memory/1600-158-0x00000000020B0000-0x0000000002806000-memory.dmp
    Filesize

    7.3MB

  • memory/1748-173-0x0000000000A30000-0x0000000001186000-memory.dmp
    Filesize

    7.3MB

  • memory/1748-172-0x0000000000A30000-0x0000000001186000-memory.dmp
    Filesize

    7.3MB

  • memory/1748-171-0x0000000000A30000-0x0000000001186000-memory.dmp
    Filesize

    7.3MB

  • memory/1748-174-0x0000000000A30000-0x0000000001186000-memory.dmp
    Filesize

    7.3MB

  • memory/1748-175-0x0000000000A30000-0x0000000001186000-memory.dmp
    Filesize

    7.3MB

  • memory/1748-176-0x0000000000A30000-0x0000000001186000-memory.dmp
    Filesize

    7.3MB